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Topic: basic question on Rubi 4.2 output from Int[] command
Replies: 3   Last Post: Nov 14, 2013 7:04 PM

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Nasser Abbasi

Posts: 6,677
Registered: 2/7/05
basic question on Rubi 4.2 output from Int[] command
Posted: Nov 13, 2013 8:47 PM
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Using Rub 4.2:

ShowSteps = False;
int = ((2^(-x) - 3^(-x))/x)^a;
Assuming[Element[a, Integers] && a > 0, Int[int, x]]

(((2^(-x) - 3^(-x))/x)^a*x^a*
Int[(2^(-x) - 3^(-x))^a/x^a, x])/(2^(-x) - 3^(-x))^a

My question, Am I reading this right: I see the
integrand printed again, but it is outside the
integration again. So it did not do the integration
(neither did Mathematica) but why then I see the integrand
printed again outside the integral?


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